[KongchangAI]
Unverified80% confidenceDecision RuleTime unknown

维生素B12形态中甲钴胺(methylcobalamin)比氰钴胺(cyanocobalamin)生物利用度更高更稳定,纯素食者和老年人B12缺乏风险高应优选活性形态

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80%
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Long-term
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